Do I need a NST?

I'm currently 30+5 and aside from the usual discomforts we have been just fine.

A couple weeks ago I was feeling hiccups, punches, kicks, head rolls, everything. But the last few days it's just been I can feel her head move from time to time, hiccups/low down movements here and there. All I've been feeling across the top of my bump is this burning/skin stretching sensation.

I have a home doppler and just had an appointment with my midwife last week. Heartbeat is solid and strong.

Has anyone else experienced this? I don't want to go for an NST if it's not necessary. I also don't want to not go if I should be going. Thanks so much for your help xoxo!